Be aware that coated rotors is mostly to protect the rotor hub, and outer edge for cosmetic purposes. The paint is not sprayed into the vanes...at least not on any I have purchased over the years.
The coating is mostly to prevent them from freezing to hub! Non-coated rotors usually freeze to the hub and/or the wheel, and you need a hammer to get them off!
Geomet coating (used in Bosch, Powerstop, and some others) *is* sprayed into the vanes, and so is the E-coating that Centric and Wagner use.